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## org.bouncycastle.asn1.x509
Class SubjectPublicKeyInfo

    java.lang.Object
      org.bouncycastle.asn1.ASN1Object
          org.bouncycastle.asn1.x509.SubjectPublicKeyInfo

All Implemented Interfaces:
  ASN1Encodable, Encodable

public class SubjectPublicKeyInfo
extends ASN1Object

The object that contains the public key stored in a certificate.

The getEncoded() method in the public keys in the JCE produces a DER encoded one of these.

Constructor Summary
`SubjectPublicKeyInfo(AlgorithmIdentifier algId, ASN1BitString publicKey)`
`SubjectPublicKeyInfo(AlgorithmIdentifier algId, ASN1Encodable publicKey)`
`SubjectPublicKeyInfo(AlgorithmIdentifier algId, byte[] publicKey)`
`SubjectPublicKeyInfo(ASN1Sequence seq)` Deprecated. use SubjectPublicKeyInfo.getInstance()

Method Summary
`AlgorithmIdentifier` | `getAlgorithm()`
`AlgorithmIdentifier` | `getAlgorithmId()` Deprecated. use getAlgorithm()
`static SubjectPublicKeyInfo` | `getInstance(ASN1TaggedObject obj, boolean explicit)`
`static SubjectPublicKeyInfo` | `getInstance(java.lang.Object obj)`
`ASN1Primitive` | `getPublicKey()` Deprecated. use parsePublicKey
`ASN1BitString` | `getPublicKeyData()` for when the public key is raw bits.
`ASN1Primitive` | `parsePublicKey()` for when the public key is an encoded object - if the bitstring can't be decoded this routine throws an IOException.
`ASN1Primitive` | `toASN1Primitive()` Produce an object suitable for an ASN1OutputStream.

Methods inherited from class org.bouncycastle.asn1.ASN1Object
`encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### SubjectPublicKeyInfo

    public SubjectPublicKeyInfo(AlgorithmIdentifier algId,
                                ASN1BitString publicKey)

### SubjectPublicKeyInfo

    public SubjectPublicKeyInfo(AlgorithmIdentifier algId,
                                ASN1Encodable publicKey)
                         throws java.io.IOException

### SubjectPublicKeyInfo

    public SubjectPublicKeyInfo(AlgorithmIdentifier algId,
                                byte[] publicKey)

### SubjectPublicKeyInfo

    public SubjectPublicKeyInfo(ASN1Sequence seq)

  Deprecated. use SubjectPublicKeyInfo.getInstance()

Method Detail

### getInstance

    public static SubjectPublicKeyInfo getInstance(ASN1TaggedObject obj,
                                                   boolean explicit)

### getInstance

    public static SubjectPublicKeyInfo getInstance(java.lang.Object obj)

### getAlgorithm

    public AlgorithmIdentifier getAlgorithm()

### getAlgorithmId

    public AlgorithmIdentifier getAlgorithmId()

  Deprecated. use getAlgorithm()

  Returns:
    alg ID.

### parsePublicKey

    public ASN1Primitive parsePublicKey()
                                 throws java.io.IOException

  for when the public key is an encoded object - if the bitstring can't be decoded this routine throws an IOException.

  Returns:
    the public key as an ASN.1 primitive.
  Throws:
    `java.io.IOException` - - if the bit string doesn't represent a DER encoded object.

### getPublicKey

    public ASN1Primitive getPublicKey()
                               throws java.io.IOException

  Deprecated. use parsePublicKey

  for when the public key is an encoded object - if the bitstring can't be decoded this routine throws an IOException.

  Returns:
    the public key as an ASN.1 primitive.
  Throws:
    `java.io.IOException` - - if the bit string doesn't represent a DER encoded object.

### getPublicKeyData

    public ASN1BitString getPublicKeyData()

  for when the public key is raw bits.

  Returns:
    the public key as the raw bit string[]

### toASN1Primitive

    public ASN1Primitive toASN1Primitive()

  Produce an object suitable for an ASN1OutputStream. SubjectPublicKeyInfo ::= SEQUENCE { algorithm AlgorithmIdentifier, publicKey BIT STRING }

  Specified by:
    `toASN1Primitive` in interface `ASN1Encodable`
  Specified by:
    `toASN1Primitive` in class `ASN1Object`
  Returns:
    a primitive representation of this object.

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